High Quality Content by WIKIPEDIA articles! Pacorus I of Parthia (died 38 BC) was the son of king Orodes II and queen Laodice of the Parthian Empire. It is possible that he was co-ruler with his father for at least part of his father`s reign. His wife was an unnamed Armenian princess, who was the daughter of King Tigranes the Great of Armenia and his wife, Queen Cleopatra of Pontus.